Vertical boiler.



H. O. KEFERSTEIN.

VERTICAL BOILER.

APPLIOATION HLBD 2213.11, 1909.

Patented June 15, 1909.

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of the tubes G,

HANS O. KEFICRSTEIN, OF NEW ORLEANS, LOUISIANA.

VERTISAL BOILER.

No. sealer.

Application filed February 11, 1909.

7b all tubo/m it may comer/n:

Be it known that l, HANS O. Knrnnsrnm, a subject el the Emperor of Germany, residing at N ew Orleans, in the ish oic @rleans and State ol' Louisiana, have in rented certain new and useful improvements in lflertical Boilers,- and l' do hereby declare the following to be a full, clear, and enact description olt the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to vertical boilers provided with 'lire-tubes; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed. A

ln the drawings, Figure 1 is a vertical section through a boiler constructed according to this invention. Fig. 2 is a sectional plan view taken on the line in Fig. 1. Fig. 3 is a vertical section through one ot the steam and water tubes and one oti the 'lire-tubes, drawn to a larger scale. Fig. a is a cross-seetion taken on the line gig] in A is a cylindricalsupporting shellprovided with a lining B of 'fire-brick or other similar material which forms a heating-chamber C.

D is the furnace arranged to one side of the chamber C and provided with a hre-grate d. llhe upper parts or" the furnace and heatingchamber are connected together by a passage c. A door is provided at the lower part of the chamber C for the purpose of cleaning it.

E is a drum which rests on the top of the shell A. This drum is provided with an upper head f and a lower head c.

F is the smoke-stack which is supported above the upper head f.

G are the vertical 'lire-tubes, the upper en d portions of which are secured in the lieadf in any approved manner. These :tire-tubes depend from the head]r through the drum and extend into the heating-chamber. As many lire-tubes as desired are used, but only a few are shown, by way of illustration.

H are the steam and water tubes, the upper end portions of which are secured in the head c. 'lhese tubes H encircle the tubes G and also extend into the heating-chamber. Caps t are secured around the lower end portions of the tubes G to close the lower ends of the tubes H. Nuts g and 7L are preferably screwed on the upper and lower end portions but the tubes may be secured Specification of Letters Patent.

Patented June 15, 1909.

Serial No. 477,34. I

and kept steam-tight by any other approved means.

l is a partition which extends vertically in he annular space between the tubes G and l for the greater part of the length of the 'uses lil. A steam delivery pipe or nozzlet termed en or secured te each tube il on one side of its partition, and this nozzle projects within the drum E.

J is a plate secured to the drum E and which eJ-,tends upwardly from its lower head c, but not so much as the nozzles t. A space j for mud is formed between the shell of the drum E and the plate J.

K the feed-water pipe secured to the drum and delivering the feed-water into the space L is the steam pipe connected to the upper part of the drum E. A superheater coil m is supported in the middle part of the heatingchamber C around the tubes, and the steam from the pipe L is passed through this coil before being used to drive engines or for other purposes but this superheater coil may be dispensed with if desired.

The products of combustion from the turnace pass through the passage c into the upper part of the heating-chamber, thence dow ward between the steam and water tubes, and upward through the lire-tubes to the smoke-stack.

The feed-water having deposited its solid matter in the mud-space j, flows over the plate J, and down the water and steam tubes on one side ol their partitions I. The steam formed in the tubes H flows upward through the nozzles 'i into the drum E.

l/Vhat ll claim is:

1. The combination, with a heating-chamber, of a drum supported above the said. chamber and provided with an upper head and a lower head, lire-tubes open at each end and depending from the said upper head into the said heating-chamber, and steam and water tubes encircling the said fire-tubes and secured in the said lower head and provided at one side of their upper ends with inlets for water which communicate with the Water space of the drum and provided also at their other side portions with outlets for steam arranged above the level of the said inlets for water and communicating with the steam space of the drum, said steam and water tubes being closed at their lower ends.

2. The combination, with a heating-chamber, ol" a drum supported above the said chamber and provided with an upper head and a lower head, iire-tubes open at each end and depending from the said upper head into the said heating-chamber7 and steam and water tubes encircling the said hre-tubes and secured in the said lower head and provided with radial partition plates which divide them into inlet sections for water and outlet sections for steam, said inlet and outlet sections having separate openings which communicate with the water and Steam spaces of the drum respectively, and said steam and water tubes being closed at their lower ends.

3. The combination, with a heating-chamber, of a drum supported above the said Chamber and provided with an upper head and a lower head, fire-tubes open at each end and depending from the said upper head into the said heating-chamber, steam and water tubes encircling the said i'ire-tubes and having their upper ends open and secured in the said lower head and having their lower ends closed, vertical partitions secured in the annular spaces between the said tubes, and

l jecting steam nozzles projecting from the steam and Water tubes on one side of their partitions into the steam space of the said drum.

4. The combination, with a heating-chamber, of a drum supported above the said chamber and provided with an upper head and a lower head, 'fire-tubes open at each end and depending from the said upper head into the said heating-chamber, steam and Water tubes encircling the said fire-tubes and having their upper ends open and secured in the said lower head and having their lower ends closed, vertieal partitions secured in the annular spaces between the said tubes, a plate projecting from the lower head and forming a mud-space, a feed-water pipe connected tor the said mud-space, and steam nozzles profrom the steam and water tubes on one side of their partitions into the steam space of the drum.

'In testimony whereof l have affixed my signature in the presence of two witnesses.

HANS O. KEFERSTEN. y W'itnesses 1 W. S. REYNOLDS, H. LArNE. 

